Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Carbureted


1981-85 Diesel Engines:

1. Start engine and allow it to warm up to operating temperature.
2. Connect tachometer following manufacturer's instructions.
3. Adjust screw on injection pump to obtain specified slow idle.
4. Turn ignition OFF and then attach jumper wire across fast idle switch connector terminals.
5. Turn ignition ON and adjust idle solenoid (energized) to obtain specified fast idle.